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<title>Canvas test: 2d.composite.globalAlpha.range</title>
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<h1><a href="index.2d.html">2d</a>.<a href="index.2d.composite.html">composite</a>.<a href="index.2d.composite.globalAlpha.html">globalAlpha</a>.range</h1>
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<div class="refs">References:
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<li><a href="spec.html#testrefs.2d.composite.globalAlpha.range">2d.composite.globalAlpha.range</a>

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<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

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<script>
_addTest(function(canvas, ctx) {

ctx.globalAlpha = 0.5;
var a = ctx.globalAlpha; // might not be exactly 0.5, if it is rounded/quantised, so remember for future comparisons
ctx.globalAlpha = 1.1;
_assertEqual(ctx.globalAlpha, a, "ctx.globalAlpha", "a");
ctx.globalAlpha = -0.1;
_assertEqual(ctx.globalAlpha, a, "ctx.globalAlpha", "a");
ctx.globalAlpha = 0;
_assertEqual(ctx.globalAlpha, 0, "ctx.globalAlpha", "0");
ctx.globalAlpha = 1;
_assertEqual(ctx.globalAlpha, 1, "ctx.globalAlpha", "1");


});
</script>

